The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1982
Filed:
Aug. 05, 1981
Applicant:
Inventor:
Morio Kaneko, Hidaka, JP;
Assignee:
Kabushiki Kaisha Saginomiya Seisakusho, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
236 / ; 62225 ; 137503 ;
Abstract
A temperature responsive expansion valve. The opening degree of a first valve body is adjusted by comparing an actual superheating degree with a predetermined reference superheating degree. A temperature responsive expansion valve comprises a valve needle disposed within the first valve body, said valve needle being driven by a difference between the refrigerant pressure on the primary side and the refrigerant pressure on the secondary side, said valve needle moving to enlarge the area of flow path within the valve opening when the pressure differential between the primary and secondary sides is smaller than a predetermined reference value.